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<a name="boost.mpi.request"></a><div class="titlepage"></div>
<div class="refnamediv">
<h2><span class="refentrytitle">Class request</span></h2>
<p>boost::mpi::request — A request for a non-blocking send or receive. </p>
</div>
<h2 xmlns:rev="http://www.cs.rpi.edu/~gregod/boost/tools/doc/revision" class="refsynopsisdiv-title">Synopsis</h2>
<div xmlns:rev="http://www.cs.rpi.edu/~gregod/boost/tools/doc/revision" class="refsynopsisdiv"><pre class="synopsis"><span class="comment">// In header: &lt;<a class="link" href="../../mpi/reference.html#header.boost.mpi.request_hpp" title="Header &lt;boost/mpi/request.hpp&gt;">boost/mpi/request.hpp</a>&gt;

</span>
<span class="keyword">class</span> <a class="link" href="request.html" title="Class request">request</a> <span class="special">{</span>
<span class="keyword">public</span><span class="special">:</span>
  <span class="comment">// member classes/structs/unions</span>

  <span class="keyword">class</span> <a class="link" href="request/handler.html" title="Class handler">handler</a> <span class="special">{</span>
  <span class="keyword">public</span><span class="special">:</span>
    <span class="comment">// <a class="link" href="request/handler.html#boost.mpi.request.handlerconstruct-copy-destruct">construct/copy/destruct</a></span>
    <a class="link" href="request/handler.html#id-1_3_27_7_21_2_1_1_3_2-bb"><span class="special">~</span><span class="identifier">handler</span></a><span class="special">(</span><span class="special">)</span><span class="special">;</span>

    <span class="comment">// <a class="link" href="request/handler.html#id-1_3_27_7_21_2_1_1_3_1-bb">public member functions</a></span>
    <span class="keyword">virtual</span> <a class="link" href="status.html" title="Class status">status</a> <a class="link" href="request/handler.html#id-1_3_27_7_21_2_1_1_3_1_1-bb"><span class="identifier">wait</span></a><span class="special">(</span><span class="special">)</span> <span class="special">=</span> <span class="number">0</span><span class="special">;</span>
    <span class="keyword">virtual</span> <span class="identifier">optional</span><span class="special">&lt;</span> <a class="link" href="status.html" title="Class status">status</a> <span class="special">&gt;</span> <a class="link" href="request/handler.html#id-1_3_27_7_21_2_1_1_3_1_2-bb"><span class="identifier">test</span></a><span class="special">(</span><span class="special">)</span> <span class="special">=</span> <span class="number">0</span><span class="special">;</span>
    <span class="keyword">virtual</span> <span class="keyword">void</span> <a class="link" href="request/handler.html#id-1_3_27_7_21_2_1_1_3_1_3-bb"><span class="identifier">cancel</span></a><span class="special">(</span><span class="special">)</span> <span class="special">=</span> <span class="number">0</span><span class="special">;</span>
    <span class="keyword">virtual</span> <span class="keyword">bool</span> <a class="link" href="request/handler.html#id-1_3_27_7_21_2_1_1_3_1_4-bb"><span class="identifier">active</span></a><span class="special">(</span><span class="special">)</span> <span class="keyword">const</span> <span class="special">=</span> <span class="number">0</span><span class="special">;</span>
    <span class="keyword">virtual</span> <span class="identifier">optional</span><span class="special">&lt;</span> <span class="identifier">MPI_Request</span> <span class="special">&amp;</span> <span class="special">&gt;</span> <a class="link" href="request/handler.html#id-1_3_27_7_21_2_1_1_3_1_5-bb"><span class="identifier">trivial</span></a><span class="special">(</span><span class="special">)</span> <span class="special">=</span> <span class="number">0</span><span class="special">;</span>
  <span class="special">}</span><span class="special">;</span>
  <span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">typename</span> T<span class="special">,</span> <span class="keyword">typename</span> A<span class="special">&gt;</span> 
  <span class="keyword">class</span> <a class="link" href="request/legacy_1_3_27_7_21_2_1_1_4.html" title="Class template legacy_dynamic_primitive_array_handler">legacy_dynamic_primitive_array_handler</a> <span class="special">{</span>
  <span class="special">}</span><span class="special">;</span>
  <span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">typename</span> T<span class="special">&gt;</span> 
  <span class="keyword">class</span> <a class="link" href="request/legacy_1_3_27_7_21_2_1_1_5.html" title="Class template legacy_serialized_array_handler">legacy_serialized_array_handler</a> <span class="special">{</span>
  <span class="special">}</span><span class="special">;</span>
  <span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">typename</span> T<span class="special">&gt;</span> 
  <span class="keyword">class</span> <a class="link" href="request/legacy_serialized_handler.html" title="Class template legacy_serialized_handler">legacy_serialized_handler</a> <span class="special">{</span>
  <span class="special">}</span><span class="special">;</span>
  <span class="comment">// <a class="link" href="request.html#boost.mpi.requestconstruct-copy-destruct">construct/copy/destruct</a></span>
  <a class="link" href="request.html#id-1_3_27_7_21_2_1_1_8-bb"><span class="identifier">request</span></a><span class="special">(</span><span class="special">)</span><span class="special">;</span>
  <a class="link" href="request.html#id-1_3_27_7_21_2_1_1_11-bb"><span class="identifier">request</span></a><span class="special">(</span><a class="link" href="request/handler.html" title="Class handler">handler</a> <span class="special">*</span><span class="special">)</span><span class="special">;</span>

  <span class="comment">// <a class="link" href="request.html#id-1_3_27_7_21_2_1_1_7-bb">public member functions</a></span>
  <a class="link" href="status.html" title="Class status">status</a> <a class="link" href="request.html#id-1_3_27_7_21_2_1_1_7_1-bb"><span class="identifier">wait</span></a><span class="special">(</span><span class="special">)</span><span class="special">;</span>
  <span class="identifier">optional</span><span class="special">&lt;</span> <a class="link" href="status.html" title="Class status">status</a> <span class="special">&gt;</span> <a class="link" href="request.html#id-1_3_27_7_21_2_1_1_7_2-bb"><span class="identifier">test</span></a><span class="special">(</span><span class="special">)</span><span class="special">;</span>
  <span class="keyword">void</span> <a class="link" href="request.html#id-1_3_27_7_21_2_1_1_7_3-bb"><span class="identifier">cancel</span></a><span class="special">(</span><span class="special">)</span><span class="special">;</span>
  <span class="identifier">optional</span><span class="special">&lt;</span> <span class="identifier">MPI_Request</span> <span class="special">&amp;</span> <span class="special">&gt;</span> <a class="link" href="request.html#id-1_3_27_7_21_2_1_1_7_4-bb"><span class="identifier">trivial</span></a><span class="special">(</span><span class="special">)</span><span class="special">;</span>
  <span class="keyword">bool</span> <a class="link" href="request.html#id-1_3_27_7_21_2_1_1_7_5-bb"><span class="identifier">active</span></a><span class="special">(</span><span class="special">)</span> <span class="keyword">const</span><span class="special">;</span>
  <span class="keyword">void</span> <a class="link" href="request.html#id-1_3_27_7_21_2_1_1_7_6-bb"><span class="identifier">preserve</span></a><span class="special">(</span><span class="identifier">boost</span><span class="special">::</span><span class="identifier">shared_ptr</span><span class="special">&lt;</span> <span class="keyword">void</span> <span class="special">&gt;</span><span class="special">)</span><span class="special">;</span>

  <span class="comment">// <a class="link" href="request.html#id-1_3_27_7_21_2_1_1_9-bb">public static functions</a></span>
  <span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">typename</span> T<span class="special">&gt;</span> 
    <span class="keyword">static</span> <a class="link" href="request.html" title="Class request">request</a> 
    <a class="link" href="request.html#id-1_3_27_7_21_2_1_1_9_1-bb"><span class="identifier">make_trivial_send</span></a><span class="special">(</span><a class="link" href="communicator.html" title="Class communicator">communicator</a> <span class="keyword">const</span> <span class="special">&amp;</span><span class="special">,</span> <span class="keyword">int</span><span class="special">,</span> <span class="keyword">int</span><span class="special">,</span> <span class="identifier">T</span> <span class="keyword">const</span> <span class="special">&amp;</span><span class="special">)</span><span class="special">;</span>
  <span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">typename</span> T<span class="special">&gt;</span> 
    <span class="keyword">static</span> <a class="link" href="request.html" title="Class request">request</a> 
    <a class="link" href="request.html#id-1_3_27_7_21_2_1_1_9_2-bb"><span class="identifier">make_trivial_send</span></a><span class="special">(</span><a class="link" href="communicator.html" title="Class communicator">communicator</a> <span class="keyword">const</span> <span class="special">&amp;</span><span class="special">,</span> <span class="keyword">int</span><span class="special">,</span> <span class="keyword">int</span><span class="special">,</span> <span class="identifier">T</span> <span class="keyword">const</span> <span class="special">*</span><span class="special">,</span> <span class="keyword">int</span><span class="special">)</span><span class="special">;</span>
  <span class="keyword">static</span> <a class="link" href="request.html" title="Class request">request</a> 
  <a class="link" href="request.html#id-1_3_27_7_21_2_1_1_9_3-bb"><span class="identifier">make_packed_send</span></a><span class="special">(</span><a class="link" href="communicator.html" title="Class communicator">communicator</a> <span class="keyword">const</span> <span class="special">&amp;</span><span class="special">,</span> <span class="keyword">int</span><span class="special">,</span> <span class="keyword">int</span><span class="special">,</span> <span class="keyword">void</span> <span class="keyword">const</span> <span class="special">*</span><span class="special">,</span> <span class="identifier">std</span><span class="special">::</span><span class="identifier">size_t</span><span class="special">)</span><span class="special">;</span>
  <span class="keyword">static</span> <a class="link" href="request.html" title="Class request">request</a> 
  <a class="link" href="request.html#id-1_3_27_7_21_2_1_1_9_4-bb"><span class="identifier">make_bottom_send</span></a><span class="special">(</span><a class="link" href="communicator.html" title="Class communicator">communicator</a> <span class="keyword">const</span> <span class="special">&amp;</span><span class="special">,</span> <span class="keyword">int</span><span class="special">,</span> <span class="keyword">int</span><span class="special">,</span> <span class="identifier">MPI_Datatype</span><span class="special">)</span><span class="special">;</span>
  <span class="keyword">static</span> <a class="link" href="request.html" title="Class request">request</a> <a class="link" href="request.html#id-1_3_27_7_21_2_1_1_9_5-bb"><span class="identifier">make_empty_send</span></a><span class="special">(</span><a class="link" href="communicator.html" title="Class communicator">communicator</a> <span class="keyword">const</span> <span class="special">&amp;</span><span class="special">,</span> <span class="keyword">int</span><span class="special">,</span> <span class="keyword">int</span><span class="special">)</span><span class="special">;</span>
  <span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">typename</span> T<span class="special">&gt;</span> 
    <span class="keyword">static</span> <a class="link" href="request.html" title="Class request">request</a> <a class="link" href="request.html#id-1_3_27_7_21_2_1_1_9_6-bb"><span class="identifier">make_trivial_recv</span></a><span class="special">(</span><a class="link" href="communicator.html" title="Class communicator">communicator</a> <span class="keyword">const</span> <span class="special">&amp;</span><span class="special">,</span> <span class="keyword">int</span><span class="special">,</span> <span class="keyword">int</span><span class="special">,</span> <span class="identifier">T</span> <span class="special">&amp;</span><span class="special">)</span><span class="special">;</span>
  <span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">typename</span> T<span class="special">&gt;</span> 
    <span class="keyword">static</span> <a class="link" href="request.html" title="Class request">request</a> <a class="link" href="request.html#id-1_3_27_7_21_2_1_1_9_7-bb"><span class="identifier">make_trivial_recv</span></a><span class="special">(</span><a class="link" href="communicator.html" title="Class communicator">communicator</a> <span class="keyword">const</span> <span class="special">&amp;</span><span class="special">,</span> <span class="keyword">int</span><span class="special">,</span> <span class="keyword">int</span><span class="special">,</span> <span class="identifier">T</span> <span class="special">*</span><span class="special">,</span> <span class="keyword">int</span><span class="special">)</span><span class="special">;</span>
  <span class="keyword">static</span> <a class="link" href="request.html" title="Class request">request</a> 
  <a class="link" href="request.html#id-1_3_27_7_21_2_1_1_9_8-bb"><span class="identifier">make_bottom_recv</span></a><span class="special">(</span><a class="link" href="communicator.html" title="Class communicator">communicator</a> <span class="keyword">const</span> <span class="special">&amp;</span><span class="special">,</span> <span class="keyword">int</span><span class="special">,</span> <span class="keyword">int</span><span class="special">,</span> <span class="identifier">MPI_Datatype</span><span class="special">)</span><span class="special">;</span>
  <span class="keyword">static</span> <a class="link" href="request.html" title="Class request">request</a> <a class="link" href="request.html#id-1_3_27_7_21_2_1_1_9_9-bb"><span class="identifier">make_empty_recv</span></a><span class="special">(</span><a class="link" href="communicator.html" title="Class communicator">communicator</a> <span class="keyword">const</span> <span class="special">&amp;</span><span class="special">,</span> <span class="keyword">int</span><span class="special">,</span> <span class="keyword">int</span><span class="special">)</span><span class="special">;</span>
  <span class="keyword">static</span> <a class="link" href="request.html" title="Class request">request</a> <a class="link" href="request.html#id-1_3_27_7_21_2_1_1_9_10-bb"><span class="identifier">make_dynamic</span></a><span class="special">(</span><span class="special">)</span><span class="special">;</span>
  <span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">typename</span> T<span class="special">&gt;</span> 
    <span class="keyword">static</span> <a class="link" href="request.html" title="Class request">request</a> <a class="link" href="request.html#id-1_3_27_7_21_2_1_1_9_11-bb"><span class="identifier">make_serialized</span></a><span class="special">(</span><a class="link" href="communicator.html" title="Class communicator">communicator</a> <span class="keyword">const</span> <span class="special">&amp;</span><span class="special">,</span> <span class="keyword">int</span><span class="special">,</span> <span class="keyword">int</span><span class="special">,</span> <span class="identifier">T</span> <span class="special">&amp;</span><span class="special">)</span><span class="special">;</span>
  <span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">typename</span> T<span class="special">&gt;</span> 
    <span class="keyword">static</span> <a class="link" href="request.html" title="Class request">request</a> 
    <a class="link" href="request.html#id-1_3_27_7_21_2_1_1_9_12-bb"><span class="identifier">make_serialized_array</span></a><span class="special">(</span><a class="link" href="communicator.html" title="Class communicator">communicator</a> <span class="keyword">const</span> <span class="special">&amp;</span><span class="special">,</span> <span class="keyword">int</span><span class="special">,</span> <span class="keyword">int</span><span class="special">,</span> <span class="identifier">T</span> <span class="special">*</span><span class="special">,</span> <span class="keyword">int</span><span class="special">)</span><span class="special">;</span>
  <span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">typename</span> T<span class="special">,</span> <span class="keyword">typename</span> A<span class="special">&gt;</span> 
    <span class="keyword">static</span> <a class="link" href="request.html" title="Class request">request</a> 
    <a class="link" href="request.html#id-1_3_27_7_21_2_1_1_9_13-bb"><span class="identifier">make_dynamic_primitive_array_recv</span></a><span class="special">(</span><a class="link" href="communicator.html" title="Class communicator">communicator</a> <span class="keyword">const</span> <span class="special">&amp;</span><span class="special">,</span> <span class="keyword">int</span><span class="special">,</span> <span class="keyword">int</span><span class="special">,</span> 
                                      <span class="identifier">std</span><span class="special">::</span><span class="identifier">vector</span><span class="special">&lt;</span> <span class="identifier">T</span><span class="special">,</span> <span class="identifier">A</span> <span class="special">&gt;</span> <span class="special">&amp;</span><span class="special">)</span><span class="special">;</span>
  <span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">typename</span> T<span class="special">,</span> <span class="keyword">typename</span> A<span class="special">&gt;</span> 
    <span class="keyword">static</span> <a class="link" href="request.html" title="Class request">request</a> 
    <a class="link" href="request.html#id-1_3_27_7_21_2_1_1_9_14-bb"><span class="identifier">make_dynamic_primitive_array_send</span></a><span class="special">(</span><a class="link" href="communicator.html" title="Class communicator">communicator</a> <span class="keyword">const</span> <span class="special">&amp;</span><span class="special">,</span> <span class="keyword">int</span><span class="special">,</span> <span class="keyword">int</span><span class="special">,</span> 
                                      <span class="identifier">std</span><span class="special">::</span><span class="identifier">vector</span><span class="special">&lt;</span> <span class="identifier">T</span><span class="special">,</span> <span class="identifier">A</span> <span class="special">&gt;</span> <span class="keyword">const</span> <span class="special">&amp;</span><span class="special">)</span><span class="special">;</span>
<span class="special">}</span><span class="special">;</span></pre></div>
<div class="refsect1">
<a name="id-1.3.27.7.22.4.4"></a><h2>Description</h2>
<p>This structure contains information about a non-blocking send or receive and will be returned from <code class="computeroutput">isend</code> or <code class="computeroutput">irecv</code>, respectively. </p>
<div class="refsect2">
<a name="id-1.3.27.7.22.4.4.3"></a><h3>
<a name="boost.mpi.requestconstruct-copy-destruct"></a><code class="computeroutput">request</code> 
        public
       construct/copy/destruct</h3>
<div class="orderedlist"><ol class="orderedlist" type="1">
<li class="listitem">
<pre class="literallayout"><a name="id-1_3_27_7_21_2_1_1_8-bb"></a><span class="identifier">request</span><span class="special">(</span><span class="special">)</span><span class="special">;</span></pre>
<p>Constructs a NULL request. </p>
</li>
<li class="listitem"><pre class="literallayout"><a name="id-1_3_27_7_21_2_1_1_11-bb"></a><span class="identifier">request</span><span class="special">(</span><a class="link" href="request/handler.html" title="Class handler">handler</a> <span class="special">*</span> h<span class="special">)</span><span class="special">;</span></pre></li>
</ol></div>
</div>
<div class="refsect2">
<a name="id-1.3.27.7.22.4.4.4"></a><h3>
<a name="id-1_3_27_7_21_2_1_1_7-bb"></a><code class="computeroutput">request</code> public member functions</h3>
<div class="orderedlist"><ol class="orderedlist" type="1">
<li class="listitem">
<pre class="literallayout"><a class="link" href="status.html" title="Class status">status</a> <a name="id-1_3_27_7_21_2_1_1_7_1-bb"></a><span class="identifier">wait</span><span class="special">(</span><span class="special">)</span><span class="special">;</span></pre>
<p>Wait until the communication associated with this request has completed, then return a <code class="computeroutput">status</code> object describing the communication. </p>
</li>
<li class="listitem">
<pre class="literallayout"><span class="identifier">optional</span><span class="special">&lt;</span> <a class="link" href="status.html" title="Class status">status</a> <span class="special">&gt;</span> <a name="id-1_3_27_7_21_2_1_1_7_2-bb"></a><span class="identifier">test</span><span class="special">(</span><span class="special">)</span><span class="special">;</span></pre>
<p>Determine whether the communication associated with this request has completed successfully. If so, returns the <code class="computeroutput">status</code> object describing the communication. Otherwise, returns an empty <code class="computeroutput">optional&lt;&gt;</code> to indicate that the communication has not completed yet. Note that once <code class="computeroutput">test()</code> returns a <code class="computeroutput">status</code> object, the request has completed and <code class="computeroutput">wait()</code> should not be called. </p>
</li>
<li class="listitem">
<pre class="literallayout"><span class="keyword">void</span> <a name="id-1_3_27_7_21_2_1_1_7_3-bb"></a><span class="identifier">cancel</span><span class="special">(</span><span class="special">)</span><span class="special">;</span></pre>
<p>Cancel a pending communication, assuming it has not already been completed. </p>
</li>
<li class="listitem">
<pre class="literallayout"><span class="identifier">optional</span><span class="special">&lt;</span> <span class="identifier">MPI_Request</span> <span class="special">&amp;</span> <span class="special">&gt;</span> <a name="id-1_3_27_7_21_2_1_1_7_4-bb"></a><span class="identifier">trivial</span><span class="special">(</span><span class="special">)</span><span class="special">;</span></pre>
<p>The trivial MPI requet implenting this request, provided it's trivial. Probably irrelevant to most users. </p>
</li>
<li class="listitem">
<pre class="literallayout"><span class="keyword">bool</span> <a name="id-1_3_27_7_21_2_1_1_7_5-bb"></a><span class="identifier">active</span><span class="special">(</span><span class="special">)</span> <span class="keyword">const</span><span class="special">;</span></pre>
<p>Is this request potentialy pending ? </p>
</li>
<li class="listitem"><pre class="literallayout"><span class="keyword">void</span> <a name="id-1_3_27_7_21_2_1_1_7_6-bb"></a><span class="identifier">preserve</span><span class="special">(</span><span class="identifier">boost</span><span class="special">::</span><span class="identifier">shared_ptr</span><span class="special">&lt;</span> <span class="keyword">void</span> <span class="special">&gt;</span> d<span class="special">)</span><span class="special">;</span></pre></li>
</ol></div>
</div>
<div class="refsect2">
<a name="id-1.3.27.7.22.4.4.5"></a><h3>
<a name="id-1_3_27_7_21_2_1_1_9-bb"></a><code class="computeroutput">request</code> public static functions</h3>
<div class="orderedlist"><ol class="orderedlist" type="1">
<li class="listitem">
<pre class="literallayout"><span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">typename</span> T<span class="special">&gt;</span> 
  <span class="keyword">static</span> <a class="link" href="request.html" title="Class request">request</a> 
  <a name="id-1_3_27_7_21_2_1_1_9_1-bb"></a><span class="identifier">make_trivial_send</span><span class="special">(</span><a class="link" href="communicator.html" title="Class communicator">communicator</a> <span class="keyword">const</span> <span class="special">&amp;</span> comm<span class="special">,</span> <span class="keyword">int</span> dest<span class="special">,</span> <span class="keyword">int</span> tag<span class="special">,</span> 
                    <span class="identifier">T</span> <span class="keyword">const</span> <span class="special">&amp;</span> value<span class="special">)</span><span class="special">;</span></pre>
<p>Send a known number of primitive objects in one MPI request. </p>
</li>
<li class="listitem"><pre class="literallayout"><span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">typename</span> T<span class="special">&gt;</span> 
  <span class="keyword">static</span> <a class="link" href="request.html" title="Class request">request</a> 
  <a name="id-1_3_27_7_21_2_1_1_9_2-bb"></a><span class="identifier">make_trivial_send</span><span class="special">(</span><a class="link" href="communicator.html" title="Class communicator">communicator</a> <span class="keyword">const</span> <span class="special">&amp;</span> comm<span class="special">,</span> <span class="keyword">int</span> dest<span class="special">,</span> <span class="keyword">int</span> tag<span class="special">,</span> 
                    <span class="identifier">T</span> <span class="keyword">const</span> <span class="special">*</span> values<span class="special">,</span> <span class="keyword">int</span> n<span class="special">)</span><span class="special">;</span></pre></li>
<li class="listitem"><pre class="literallayout"><span class="keyword">static</span> <a class="link" href="request.html" title="Class request">request</a> 
<a name="id-1_3_27_7_21_2_1_1_9_3-bb"></a><span class="identifier">make_packed_send</span><span class="special">(</span><a class="link" href="communicator.html" title="Class communicator">communicator</a> <span class="keyword">const</span> <span class="special">&amp;</span> comm<span class="special">,</span> <span class="keyword">int</span> dest<span class="special">,</span> <span class="keyword">int</span> tag<span class="special">,</span> 
                 <span class="keyword">void</span> <span class="keyword">const</span> <span class="special">*</span> values<span class="special">,</span> <span class="identifier">std</span><span class="special">::</span><span class="identifier">size_t</span> n<span class="special">)</span><span class="special">;</span></pre></li>
<li class="listitem"><pre class="literallayout"><span class="keyword">static</span> <a class="link" href="request.html" title="Class request">request</a> 
<a name="id-1_3_27_7_21_2_1_1_9_4-bb"></a><span class="identifier">make_bottom_send</span><span class="special">(</span><a class="link" href="communicator.html" title="Class communicator">communicator</a> <span class="keyword">const</span> <span class="special">&amp;</span> comm<span class="special">,</span> <span class="keyword">int</span> dest<span class="special">,</span> <span class="keyword">int</span> tag<span class="special">,</span> 
                 <span class="identifier">MPI_Datatype</span> tp<span class="special">)</span><span class="special">;</span></pre></li>
<li class="listitem"><pre class="literallayout"><span class="keyword">static</span> <a class="link" href="request.html" title="Class request">request</a> <a name="id-1_3_27_7_21_2_1_1_9_5-bb"></a><span class="identifier">make_empty_send</span><span class="special">(</span><a class="link" href="communicator.html" title="Class communicator">communicator</a> <span class="keyword">const</span> <span class="special">&amp;</span> comm<span class="special">,</span> <span class="keyword">int</span> dest<span class="special">,</span> <span class="keyword">int</span> tag<span class="special">)</span><span class="special">;</span></pre></li>
<li class="listitem">
<pre class="literallayout"><span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">typename</span> T<span class="special">&gt;</span> 
  <span class="keyword">static</span> <a class="link" href="request.html" title="Class request">request</a> 
  <a name="id-1_3_27_7_21_2_1_1_9_6-bb"></a><span class="identifier">make_trivial_recv</span><span class="special">(</span><a class="link" href="communicator.html" title="Class communicator">communicator</a> <span class="keyword">const</span> <span class="special">&amp;</span> comm<span class="special">,</span> <span class="keyword">int</span> dest<span class="special">,</span> <span class="keyword">int</span> tag<span class="special">,</span> <span class="identifier">T</span> <span class="special">&amp;</span> value<span class="special">)</span><span class="special">;</span></pre>
<p>Receive a known number of primitive objects in one MPI request. </p>
</li>
<li class="listitem"><pre class="literallayout"><span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">typename</span> T<span class="special">&gt;</span> 
  <span class="keyword">static</span> <a class="link" href="request.html" title="Class request">request</a> 
  <a name="id-1_3_27_7_21_2_1_1_9_7-bb"></a><span class="identifier">make_trivial_recv</span><span class="special">(</span><a class="link" href="communicator.html" title="Class communicator">communicator</a> <span class="keyword">const</span> <span class="special">&amp;</span> comm<span class="special">,</span> <span class="keyword">int</span> dest<span class="special">,</span> <span class="keyword">int</span> tag<span class="special">,</span> <span class="identifier">T</span> <span class="special">*</span> values<span class="special">,</span> 
                    <span class="keyword">int</span> n<span class="special">)</span><span class="special">;</span></pre></li>
<li class="listitem"><pre class="literallayout"><span class="keyword">static</span> <a class="link" href="request.html" title="Class request">request</a> 
<a name="id-1_3_27_7_21_2_1_1_9_8-bb"></a><span class="identifier">make_bottom_recv</span><span class="special">(</span><a class="link" href="communicator.html" title="Class communicator">communicator</a> <span class="keyword">const</span> <span class="special">&amp;</span> comm<span class="special">,</span> <span class="keyword">int</span> dest<span class="special">,</span> <span class="keyword">int</span> tag<span class="special">,</span> 
                 <span class="identifier">MPI_Datatype</span> tp<span class="special">)</span><span class="special">;</span></pre></li>
<li class="listitem"><pre class="literallayout"><span class="keyword">static</span> <a class="link" href="request.html" title="Class request">request</a> <a name="id-1_3_27_7_21_2_1_1_9_9-bb"></a><span class="identifier">make_empty_recv</span><span class="special">(</span><a class="link" href="communicator.html" title="Class communicator">communicator</a> <span class="keyword">const</span> <span class="special">&amp;</span> comm<span class="special">,</span> <span class="keyword">int</span> dest<span class="special">,</span> <span class="keyword">int</span> tag<span class="special">)</span><span class="special">;</span></pre></li>
<li class="listitem">
<pre class="literallayout"><span class="keyword">static</span> <a class="link" href="request.html" title="Class request">request</a> <a name="id-1_3_27_7_21_2_1_1_9_10-bb"></a><span class="identifier">make_dynamic</span><span class="special">(</span><span class="special">)</span><span class="special">;</span></pre>
<p>Construct request for simple data of unknown size. </p>
</li>
<li class="listitem">
<pre class="literallayout"><span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">typename</span> T<span class="special">&gt;</span> 
  <span class="keyword">static</span> <a class="link" href="request.html" title="Class request">request</a> 
  <a name="id-1_3_27_7_21_2_1_1_9_11-bb"></a><span class="identifier">make_serialized</span><span class="special">(</span><a class="link" href="communicator.html" title="Class communicator">communicator</a> <span class="keyword">const</span> <span class="special">&amp;</span> comm<span class="special">,</span> <span class="keyword">int</span> source<span class="special">,</span> <span class="keyword">int</span> tag<span class="special">,</span> <span class="identifier">T</span> <span class="special">&amp;</span> value<span class="special">)</span><span class="special">;</span></pre>
<p>Constructs request for serialized data. </p>
</li>
<li class="listitem">
<pre class="literallayout"><span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">typename</span> T<span class="special">&gt;</span> 
  <span class="keyword">static</span> <a class="link" href="request.html" title="Class request">request</a> 
  <a name="id-1_3_27_7_21_2_1_1_9_12-bb"></a><span class="identifier">make_serialized_array</span><span class="special">(</span><a class="link" href="communicator.html" title="Class communicator">communicator</a> <span class="keyword">const</span> <span class="special">&amp;</span> comm<span class="special">,</span> <span class="keyword">int</span> source<span class="special">,</span> <span class="keyword">int</span> tag<span class="special">,</span> 
                        <span class="identifier">T</span> <span class="special">*</span> values<span class="special">,</span> <span class="keyword">int</span> n<span class="special">)</span><span class="special">;</span></pre>
<p>Constructs request for array of complex data. </p>
</li>
<li class="listitem">
<pre class="literallayout"><span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">typename</span> T<span class="special">,</span> <span class="keyword">typename</span> A<span class="special">&gt;</span> 
  <span class="keyword">static</span> <a class="link" href="request.html" title="Class request">request</a> 
  <a name="id-1_3_27_7_21_2_1_1_9_13-bb"></a><span class="identifier">make_dynamic_primitive_array_recv</span><span class="special">(</span><a class="link" href="communicator.html" title="Class communicator">communicator</a> <span class="keyword">const</span> <span class="special">&amp;</span> comm<span class="special">,</span> <span class="keyword">int</span> source<span class="special">,</span> 
                                    <span class="keyword">int</span> tag<span class="special">,</span> <span class="identifier">std</span><span class="special">::</span><span class="identifier">vector</span><span class="special">&lt;</span> <span class="identifier">T</span><span class="special">,</span> <span class="identifier">A</span> <span class="special">&gt;</span> <span class="special">&amp;</span> values<span class="special">)</span><span class="special">;</span></pre>
<p>Request to recv array of primitive data. </p>
</li>
<li class="listitem">
<pre class="literallayout"><span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">typename</span> T<span class="special">,</span> <span class="keyword">typename</span> A<span class="special">&gt;</span> 
  <span class="keyword">static</span> <a class="link" href="request.html" title="Class request">request</a> 
  <a name="id-1_3_27_7_21_2_1_1_9_14-bb"></a><span class="identifier">make_dynamic_primitive_array_send</span><span class="special">(</span><a class="link" href="communicator.html" title="Class communicator">communicator</a> <span class="keyword">const</span> <span class="special">&amp;</span> comm<span class="special">,</span> <span class="keyword">int</span> source<span class="special">,</span> 
                                    <span class="keyword">int</span> tag<span class="special">,</span> 
                                    <span class="identifier">std</span><span class="special">::</span><span class="identifier">vector</span><span class="special">&lt;</span> <span class="identifier">T</span><span class="special">,</span> <span class="identifier">A</span> <span class="special">&gt;</span> <span class="keyword">const</span> <span class="special">&amp;</span> values<span class="special">)</span><span class="special">;</span></pre>
<p>Request to send array of primitive data. </p>
</li>
</ol></div>
</div>
</div>
</div>
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      Matthias Troyer, Trustees of Indiana University<p>
        Distributed under the Boost Software License, Version 1.0. (See accompanying
        file LICENSE_1_0.txt or copy at &lt;ulink url="http://www.boost.org/LICENSE_1_0.txt"&gt;
        http://www.boost.org/LICENSE_1_0.txt &lt;/ulink&gt;)
      </p>
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